From: Julien Grall <julien.grall@arm.com>
To: Dirk Behme <dirk.behme@de.bosch.com>,
Iurii Mykhalskyi <iurii.mykhalskyi@globallogic.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>,
Dirk Behme <dirk.behme@gmail.com>,
xen-devel@lists.xen.org
Subject: Re: [PATCH] arm64:renesas: Introduce early console for Salvator-X board
Date: Wed, 9 Nov 2016 12:14:41 +0000 [thread overview]
Message-ID: <a8bf6bbd-803f-58d7-e019-e30907128174@arm.com> (raw)
In-Reply-To: <0399b362-b920-2891-b373-b7a5f6cb9b20@de.bosch.com>
Hello,
On 09/11/16 07:14, Dirk Behme wrote:
> On 08.11.2016 16:41, Iurii Mykhalskyi wrote:
>> Hello Dirk,
>>
>> I have made only single change - I recompile ATF to leave CPU in EL2
>> mode and reflash it.
>
>
> Yes, this is what I meant with 'modifying firmware' ;)
>
> You are loading Xen with U-Boot running in EL2, then?
>
> With this modification, do all other use cases still work? E.g. load and
> boot U-Boot and native Linux kernel without Xen?
Yes, when Linux is booting from EL2, it will drop to EL1 (see
el2_setup). As Andre mentioned on the previous thread, U-boot is running
at EL2 on various board (e.g pine64, juno).
Modifying the firmware was the right way to go as there is no solution
go boot at EL2 from EL1.
Regards,
--
Julien Grall
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next prev parent reply other threads:[~2016-11-09 12:14 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-08 14:20 [PATCH] arm64:renesas: Introduce early console for Salvator-X board Iurii Mykhalskyi
2016-11-08 14:30 ` Julien Grall
2016-11-08 15:22 ` Dirk Behme
2016-11-08 15:41 ` Iurii Mykhalskyi
2016-11-09 7:14 ` Dirk Behme
2016-11-09 12:14 ` Julien Grall [this message]
2016-11-10 6:54 ` Dirk Behme
2016-11-10 9:25 ` Iurii Mykhalskyi
2016-11-10 9:34 ` Dirk Behme
2016-11-21 17:12 ` Iurii Mykhalskyi
2016-11-21 17:29 ` Julien Grall
2016-11-22 10:59 ` Andrii Anisov
2016-11-22 11:20 ` Andrii Anisov
2016-11-23 14:00 ` Iurii Mykhalskyi
2016-11-23 14:15 ` Andrii Anisov
2016-11-23 14:27 ` Iurii Mykhalskyi
2016-11-23 14:22 ` Andrii Anisov
2016-11-25 9:13 ` Andrii Anisov
2016-11-25 13:44 ` Iurii Mykhalskyi
2016-11-23 15:04 ` Julien Grall
2016-11-08 15:48 ` Andrii Anisov
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